When nuclear scientists are kidnapped and smuggled behind the Iron Curtain, an FBI man and a British agent are assigned to catch the kidnappers.
| Directing | Seymour Friedman | Director |
| Writing | John Baines | Screenplay |
| Directing | Peter Graham Scott | Director |
| Art | Fred Mannin | Draughtsman |
| Camera | Humphrey Cull | Clapper Loader |
| Sound | Eric Cass | Boom Operator |
| Crew | Nicholas Phipps | Additional Dialogue |
| Production | Ronald Kinnoch | Associate Producer |
| Production | Bernard Luber | Producer |
| Sound | Hans May | Original Music Composer |
| Crew | Eric Cross | Cinematography |
| Editing | Tom Simpson | Editor |
| Art | George Paterson | Art Direction |
| Costume & Make-Up | Jill Carpenter | Makeup Artist |
| Costume & Make-Up | Pauline Trent | Hairdresser |
| Production | John 'Pinky' Green | Production Manager |
| Production | Edward Joseph | Production Manager |
| Directing | Pat Kelly | Assistant Director |
| Directing | Eric Pavitt | Assistant Director |
| Directing | Billy Russell | Assistant Director |
| Sound | Leslie Hodgson | Sound Editor |
| Sound | Charles Tasto | Sound Mixer |
| Camera | Frederick Ford | Additional Photography |
| Camera | Arthur Graham | Camera Operator |
| Camera | Bert Mason | Camera Operator |
| Camera | Cyril Stanborough | Still Photographer |
| Camera | Bill Bonner | Clapper Loader |
| Directing | Phyllis Crocker | Continuity |
